(19)

(11)

EP 1 778 611 A2

(12)

(88) Date of publication A3: 27.07.2006 (43) Date of publication: 02.05.2007 Bulletin 2007/18 (21) Application number: 05791718.9 (22) Date of filing: 18.08.2005

(51) International Patent Classification (IPC):  C07C 29/16(2006.01) C07C 329/18(2006.01) (86) International application number: PCT/US2005/029488 (87) International publication number: WO 2006/023691 (02.03.2006 Gazette 2006/09)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR (30) Priority: 20.08.2004 US 923271 (71) Applicant: Noveon, Inc. Cleveland, OH 44141-3247 (US)	(72) Inventors: LAI, John Ta-Yuan Broadview Heights, Ohio 44147 (US) HSU, Shui-Jen Raymond Westlake, Ohio 44145 (US) (74) Representative: Weber, Thomas  Patentanwälte von Kreisler-Selting-Werner, Deichmannhaus am Dom, Bahnhofsvorplatz 1 50667 Köln 50667 Köln (DE)